Exowatt
PrivateLast Round
Series A
Extension
Nov 13, 2025
Total Funding Raised
$140M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Exowatt is a renewable energy company that develops modular thermal energy storage systems designed to provide reliable, dispatchable power for energy-intensive applications such as data centers.
Sector
Energy & Sustainability
Verticals
Energy Storage, Renewable Energy, Cloud Infrastructure, Smart Grid
Business Model
B2B
Customer Profile
Hardware Sales, Services & Consulting
AI Layer
Infrastructure
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Exowatt Comparables
Compare Exowatt with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Fourth Power | 68% | |
| Joulent | 64% | |
| Rondo Energy | 63% | |
Exowatt Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series A Extension | Nov 13, 2025 | ||||
| Series A | Apr 22, 2025 | ||||
| Debt | Apr 22, 2025 | ||||
| Seed | Apr 22, 2024 |
Secondary Market Activity
Bids, offers, and trades by month
| Operation | Date | Price | Size | Share Class | Structure |
|---|---|---|---|---|---|
BID |
Exowatt Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Andreessen Horowitz | Seed, Series A |
| Overmatch | Series A Extension |
| Manhattan Venture Partners | Series A Extension |
| Thrive Capital | Series A |
| StepStone Group | Series A |
| Climate Capital | Seed |
| DeepWork Capital | Series A Extension |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 20, 2026
Grew 16% QoQ, from 79 to 92 employees.
- Jun 1, 2026
Participating in an AWS inference fellowship program.
Exowatt Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation | Sign Up to view | Mock Valuation |
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Frequently Asked Questions
Common questions about Exowatt's valuation, stock price, and market status.